• Fun Facts About Eyes
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  • How much does one human eyeball weigh? A.  5 ounces  B.  1 pound  C. 1 ounce
    One human eyeball weighs about 28 grams or 1 ounce
  • How many shades of a color can the typical human eye distinguish? A. 30 B. 6 C. 500 D. 75
    The human eye can distinguish about 500 shades of a color.
  • Which is faster for most people, reading on a computer screen or reading on paper?
    People generally read about 25% slower on a computer screen than paper.
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